codex free auth automatic acquisition flow feasibility

Tuesday, May 05, 2026

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I have two hundred free accounts and one plus account, connected to cliproxyapi, reverse-proxied for use in various CLIs. These accounts are enough for heavy personal use. If you enable 1M context, fast mode, use subagents, high-res image parsing, the tokens of these few hundred accounts will still be stretched thin, and you still have to plan usage. The free codex cli trial quota is officially said to be time-limited, with no specified end date—enjoy it before it’s canceled. Preparation requirements:

A self-controlled email server; I use Alibaba Cloud Mail
An SMS forwarding provider; I use herosms
A capable and fast large model, needing playwright mcp to automate web operations; sonnet/opus/GPT5.4 all work This skill plus script only runs with an agent cli tool. I haven’t shared everything, only proving the flow is feasible. herosms SMS prices are gradually rising, and during the day phone numbers have repeatedly run out—we’re probably all competing for them. Also you need to be familiar with cliproxyapi usage; I recommend enabling fill-priority and session-sticky routing. Four free accounts got banned, and I couldn’t confirm whether it was from reverse-proxying to another cli or temporarily enabling polling. Why do we need an agent cli plus skill to execute this flow? Early on I tried open-source tools that fully scripted free account registration—back then no SMS was needed, but accounts got banned quickly. Later I spent a long time trying, and finally had to admit that chatgpt’s popup verification window is almost random: sometimes it asks for email code, sometimes it asks for phone code again. Because of this randomness I couldn’t use pure scripts to register accounts. If anyone has done pure-script registration of unbanned free accounts, feel free to share. Account costs include email, SMS, and the token cost of running the skill. Email depends on your own channels; SMS cost is theoretically 0.1 yuan per account, one phone number can bind three accounts, and multiple SMS within 20 minutes of renting a number aren’t charged repeatedly. Tokens can use one free account’s token to apply—one becomes six, natural fission.